小猪妈妈给小猪哥哥7个苹果，给小猪弟弟8个苹果，这时隔壁的小猪花花过来玩，要使它们三个的苹果个数同样多，那么小猪哥哥和小猪弟弟各应给小猪花花几个苹果?

8-0{#blank#}1{#/blank#}8          3+3{#blank#}2{#/blank#}9        10-6{#blank#}3{#/blank#}5

9-2{#blank#}4{#/blank#}4          6+3{#blank#}5{#/blank#}8        10-10{#blank#}6{#/blank#}10

7+1{#blank#}7{#/blank#}6          6-3{#blank#}8{#/blank#}3        9-3{#blank#}9{#/blank#}7

2+6=       10-8=      7+3=       9-3=

9-9=       5+3=        1+7=       7-3=

5+5-4=    10-1-4==    2+6+2=     7-2+4=

4{#blank#}1{#/blank#}6=10       6{#blank#}2{#/blank#}4=2       10{#blank#}3{#/blank#}2=8

5{#blank#}4{#/blank#}3=8        7{#blank#}5{#/blank#}2=5        1{#blank#}6{#/blank#}3=4